| 液相色谱测定糙米中烯虫酯残留量 |
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| 引用本文： | 王超 李淑娟. 液相色谱测定糙米中烯虫酯残留量[J]. 分析化学, 1998, 26(10): 1244-1246 |
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| 作者姓名： | 王超 李淑娟 |
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| 作者单位： | 中国进出口商品检验技术研究所!北京100025 |
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| 摘 要： | 研究了液相色谱测定糙米中烯虫酯残留量的方法。试样用丙酮提取，经活性炭，中性氧化铝层析柱一步净化，用液相色谱测定。线性范围０．２－１０．０ｍｇ／Ｌ，检出限为０．０５ｍｇ／Ｌ，当添加浓度０．５－１０．０ｍｇ／ｋｇ时，回收率为８４．２％－１００．７％之间。用于糙米中烯虫酯残留量检验，结果满意。
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| 关 键 词： | 液相色谱 糙米 烯虫酯 农药残留量 |
Determination of Methoprene Residue in Rice by High Performance Liquid Chromatography |
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| Wang Chao,Li Shujuan,Pan Jianwei,Hao Nan,Wang Xing. Determination of Methoprene Residue in Rice by High Performance Liquid Chromatography[J]. Chinese Journal of Analytical Chemistry, 1998, 26(10): 1244-1246 |
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| Authors: | Wang Chao Li Shujuan Pan Jianwei Hao Nan Wang Xing |
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| Abstract: | A new high performance liquid chromatography method for the determination of residue of methoprene in rice has been developed. Pulverized rice (20 g) was extracted with l00 mL acetone by shaking 30 min, the filtrate was evaporated to dryness and dissolved in 20 mL hexane. A 5 mL portions was added into an actived carbon and neutral alumina column, and then eluted with 40 mL acetone/ hexane (3:7). The eluate was evaporate to dryness and the residue was dissolved in methanol for high performance liquid chromatographic determination. Linearity was observed for 0. 5- 10. 0 mg/L of methoprene. The detection limit was 0.05 mg/L. Recovery was 84 .2% - l00.7%. |
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| Keywords: | Liquid chromatography methoprene rice |
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